Biology [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 191 - 196 of 399

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Question number: 191

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Question

MCQ▾

Ecological pyramids are:

Choices

Choice (4)Response

a.

Food chains on the basis of number

b.

Food chains on the basis of biomass productivity

c.

Food chains on the basis of energy

d.

All a. , b. and c. are correct

Question number: 192

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Question

MCQ▾

The region of the surface and atmosphere of the earth or another planet occupied by living organisms is known as:

Choices

Choice (4)Response

a.

Bioconservation

b.

Biocommunity

c.

Biosphere

d.

Biodiversity

Question number: 193

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Question

MCQ▾

Allosomes are called as:

Choices

Choice (4)Response

a.

Giant chromosomes

b.

Sex chromosomes

c.

Plasmid

d.

Homologous chromosomes

Question number: 194

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Question

MCQ▾

What is the sexual reproduction?

Choices

Choice (4)Response

a.

Sexual reproduction is unisexual and bisexual

b.

Two individuals to form a third unique offspring

c.

Reproduction involving the union of gametes

d.

All a. , b. and c. are correct

Question number: 195

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Question

MCQ▾

Structure is the sites of sperm production are called:

Choices

Choice (4)Response

a.

Ductus deferens

b.

Seminiferous tubules

c.

Interstitial cells

d.

Epididymis

Question number: 196

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Question

MCQ▾

Food preservation involves preventing the growth of bacteria, fungi and other microorganisms. Which of the following methods are used as food preservation?

I. Smoking

II. Freezing

III. Drying

IV. Canning

Which of the method/ (s) is/are correct?

Choices

Choice (4)Response

a.

II and III only

b.

I, II, III and IV

c.

I, II and III only

d.

I and III only